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National Stock Number:
5310-00-088-6880
Federal Supply Class:
5310
National Item Identification Number:
000886880
Description:
WASHER,FLAT
Detail:
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.
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Manufacturer Information:
| 589139-25 | 45934 | ONTIC ENGINEERING & MANUFACTURING, INC | | 589139-25 | 73030 | HAMILTON SUNDSTRAND CORPORATION |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 83.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 85.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM | | HEAT TREATMENT | AS FABRICATED | | HOLE DIAMETER | 0.576 INCHES MINIMUM AND 0.580 INCHES MAXIMUM | | OVERALL DIAMETER | 0.810 INCHES MINIMUM AND 0.814 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5513 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 304 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | THICKNESS | 0.077 INCHES MINIMUM AND 0.079 INCHES MAXIMUM |
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